User's Manual

UMTS/HSPA Module Series
UG95 Hardware Design
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3.15. Operating Status Indication
The STATUS pin is set as an output pin and can be used to judge whether module is power-on. In
customer’s design, this pin can be used to drive an LED in order to judge the module’s operation status.
The following table describes pin definition of STATUS.
Table 19: Pin Definition of STATUS
Pin Name
Pin No. I/O
Description
Comment
STATUS
20
DO
Indicate the module operation status.
1.8V power domain.
A reference circuit is shown as below.
4.7K
47K
VBAT
2.2K
Module
STATUS
Figure 29: Reference Circuit of the STATUS